Product Overview  ——Central Air Conditioning Modular Combined Type Air Handling Unit with Customizable Air Flow

Air Handing Unit

Features at a Glance

• Air Filtration and Purification Function
• Temperature and Humidity Regulation Function
• Air Mixing and Ventilation Function
• Air Delivery and Distribution Function
• Noise Control Function
• Operation Monitoring and Protection Function

Products Description

• Mixing Section

  • Details: Fresh air (OA) and return air (RA) dampers are typically interlinked and controlled to maintain a constant total airflow (in constant volume systems). The damper actuators can be electric, pneumatic, or electronic, receiving signals from the Building Management System (BMS).

  • Key Parameter: Minimum outside air ratio (typically 15-30%, modulated based on demand control ventilation or codes).

• Filtration Section

  • Filter Grades (EN/ISO Standards):

    • G3/G4 (Pre-filters): ~80-90% efficiency on ≥5µm particles. Protects equipment.

    • F5-F9 (Medium-efficiency): 40-95% on ≥1µm particles. Standard for commercial IAQ.

    • H10-H14 (HEPA/Sub-HEPA): >95% on ≥0.3µm particles. For cleanrooms, ORs, labs.

  • Differential Pressure Gauge/Switch: Monitors pressure drop across the filter bank. Alerts when the filter is loaded and needs replacement—critical for preventive maintenance.

• Coil Section

  • Construction & Materials:

    • Tube & Fin: Copper tubes with mechanically expanded aluminum fins. Often coated with a hydrophilic (water-loving) film to improve condensate drainage and inhibit microbial growth.

    • Rows/Circuits: Cooling coils are typically 4-8 rows deep. More rows increase dehumidification capacity. Internal circuits (for water or refrigerant) ensure even distribution and heat transfer.

    • Drip Pan: Located below the cooling coil. Must be sloped, insulated, and equipped with a proper P-trap to ensure condensate drainage and prevent air leakage and microbial contamination.

• Humidification Section

  • Type Details:

    • Steam Humidification (Isothermal): Most common. Uses clean, dry steam from a central boiler or self-contained generator, injected via a steam dispersion manifold. Precise and hygienic.

    • Adiabatic Humidification: Uses high-pressure water nozzles or ultrasonic atomizers. Cools the air as water evaporates (adiabatic process).

• Fan Section

  • Fan Types:

    • Forward-Curved Centrifugal Fans: Lower pressure, higher volume. Common in smaller units.

    • Backward-Inclined/Airfoil Centrifugal Fans: Higher efficiency, non-overloading power curve, quieter operation. Preferred for large, efficient AHUs.

  • Drive Arrangement: Belt-driven (adjustable, requires maintenance) or direct-driven (higher efficiency, lower maintenance).

  • Variable Frequency Drive (VFD): Standard on modern AHUs. Modulates fan speed based on duct static pressure or temperature reset strategies for significant energy savings in part-load conditions.

Related Products

Company Profile

As a leading supplier of clean room system and clean room products,SHP is an organization that prides itself both on technical expertise as well as next level customer care.SHP offers Cleanroom Solutions to meet our clients' particular requirements specialized for pharmaceutical,biotechnology and microelectronic cleanrooms.We also provide a range of Clean Room products including wall panel,door&window and a series of clean room equipment.

As an ISO 9001:2015 certified organization,we are committed to continually improving our customer service programs while meeting or exceeding your product quality criteria.With our comprehensive customer solution offerings,excellence in products,and decades of technical expertise,we are confident that SHP can match the best to your application.

Our Customers

Customer Photos

Packing and Shipping

FAQ

Q1: Where is your company?

A1:Our company is located in Suzhou City, close to Shanghai. It's a 1.5-hour drive from PVG Airport.

Q2: Are you a manufacturer or a trading company? What can I buy from you?
A2: We are manufacturers. We focus on cleanroom projects, air showers, FFUs, through boxes, dosing rooms, laminar flow hoods and benches, AHUs, and sealed doors and Windows. 

Q3:When is your delivery time? 
A3: If your cleanroom project includes AHU, the delivery time is 35 days. If you purchase goods without an AHU, the delivery time is 10 days. 

Q4: How long is your warranty period? What kind of after-sales service can you offer?
A4: Our warranty period is two years after the completion of the project. During the warranty period, if there are any problems, we will replace it. If you can't handle it, we will send an engineer to solve it for free.

Q5:Can you conduct cleanroom validation? 
A5: Yes, we can offer documentaries of DQ, IQ, OQ and PQ. Still fat & Sitting. Product operation manual, maintenance guide and a complete set of cleanroom drawings. 

Q6:What are your advantages?
A6: We have a complete technical team consisting of 12 senior cleanroom and HVAC engineers to provide you with technical support. We have completed over 2,100 cleanroom projects in China and overseas. Such as Japan, Indonesia, Thailand, Bangladesh, India, North Macedonia, Saudi Arabia, Yemen, Russia, Moldova, Switzerland, Norway, the United Kingdom, Spain, France, Belgium, Kuwait, Tunisia, Mauritius, Sri Lanka, Mongolia, Philippines, Nepal, Sudan, Somaliland, Australia, New Zealand, Canada, Algeria, Egypt, Singapore, and the United States.